Fans per se, I find always a little pretty. At least the design of this agitator has succeeded and he has a modern appearance. The light blue transparent wings allow the head are less bulky. Whether you absolutely must write instead Turbo Stage 4 is sometimes an open question. The marketing would probably be able to say what times.
At level 1 the fan to 2.5m distance is somewhat quieter than my computer under the desk. In the bedroom I do not want to use the Rowenta yet. That reminds me also the sound on stage 1 would be too loud.
Level 4 (Turbo) makes a lot of wind, and consequently a lot of flow noise and a little engine noise. The sound is pleasant; I remembered spontaneously "turboprop aircraft in cotton" to do so.
Shortly the power:
Level 1: 31W; Stage 4: 41W; Off: 0W
Conclusion: Recommended device!